Finding the Fourth Proportional to 288,699.38, 433,229.49 and 138,955.49
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Solution
The fourth proportional to 288,699.38, 433,229.49 and 138,955.49 is: 208,520.07
Step by Step Solution
- Step 1: Write the proportion equation
288,699.38 : 433,229.49 = 138,955.49 : x - Step 2: Convert to fraction form
288,699.38/433,229.49 = 138,955.49/x - Step 3: Cross multiply
288,699.38x = 433,229.49 × 138,955.49 - Step 4: Simplify right side
288,699.38x = 60,199,613,899.25 - Step 5: Solve for x
x = 60,199,613,899.25/288,699.38 - Step 6: Final answer
x = 208,520.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.